We have Comcast cable highspeed commercial service and Verizon wireless backup in place. Using a Peplink router to monitor Comcast as priority WAN and switch to Verizon when health check fails. Problem is we lose web sessions that are open (such as Omnovia AV rooms and active downloads) and VOIP calls. Is it possible to set up both WANs to a common public IP address without the complexity of VPNs and be able to preserve the open session links so we don't lose voip calls and active web activity? Since we don't control the "other end" of the session on the open web, we cannot set up robust, fixed VPNs. Just need to understand if there are any protocols that support robust connectivity (RTP?).